Automatic fan.



No. 7m,u7a. Patented May 27,1902.

m. DTTENHEIMER.

AUTOMATIC FAN.

(Application filed July 16, 1901.)

2 Sheets-Sheet l,

(No Model.)

m: Norms vzvcas co. wnraumc. WASHINGTON, n c.

N0. 70|,078. Patented May 27, I902.

M. OTTENHEIMER.

AUTOMATIC FAN.

(Application filed July 16, 1901.

(No Model.) r 2 Sheets-Sheqt 2.

UNiThD STATES PATENT ()FFICE.

MOSES OTTEUHEIMER, OF BALTIMORE, MARYLAND.

AUTOMATIC FAN.

SPECIFICATION forming part of Letters Patent N 0. 701,078, dated May 27,1902.

Application filed July 16, 1901. Serial No. 68,480. (No model.)

To (LZZ whom, it 'ITML/j concern.-

Be it known that 1, Moses OTTENHEIMER, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented new anduseful Improvements in Automatic Fans, of which the following is a speciiication.

This invention relates to automatic fans; and its object is to provide adevice of this character which can be readily attached to a bed, chair,or the like and extended in operative position over the occupant of thesame and which when not in use can be readily folded into compact form,so as to be stored away or carried from one place to another.

The invention consists in certain constructions, arrangements, andcombinations of the parts hereinafter fully described and claimed,reference being had to the accompanying drawings, in which- Figure 1 isa top and rear perspective View of my improved automatic fan in extendedand operative position. Fig. 2 is a vertical section thereof attached toa bed and with the pivoted fan-supporting arm swung back into folded andinoperative position. Fig. 3 is a side view of the free end of thefan-supporting arm and illustrates in section the bearings of thefan-shaft. Fig. 4 is a sectional view of the standard and its pivotedfan-supporting arm on the line :0 m of Fig. 2. Fig. 5 is a side view, ona smaller scale, of the automatic fan secured to the back of a chair.

Referring to the drawings, the referencenumeral 1 designates a casingfor inclosing the power mechanism, which maybe any suitable power, andin the present instance is a spring-motor comprising a spring 3, adaptedto be wound up by a handle 24 and communicating rotary motion to adriving-pulley 4 b means of pinions 2 as illustrated in Fi a. y 1 c 2.At its top the casing is provided with forwardly-extending anglebrackets or hangers 19, adapted to take over the article to which thefan is to be connected-such, for instance, as a bed 20, asillustrated inFig. 2, or a chair 21, as illustrated in Fig. 5.

Rising from the top of the casing 1 and rigidly secured thereto is avertical standard 9, preferably formed of channel-iron, so that it isprovided with a longitudinal recess 22, opening rearwardly, as indicatedin the drawings.

Said standard is provided at its upper end with two side ears 22, risingabove its front wall 22*, so that the upper edge of said wall forms ashoulder 22, for a purpose hereinafter describe hand said standard isalso provided at its upperend with forwardly-extending slotted brackets13, in which are journaled idle rollers 6, tensioned by springs 12. Apivot-pin 11 passes through the said ears 22 and is provided with athumb-nut 11, and a fan-supporting arm 10 is provided at its rear endwith a knuckle, by which it is pivotally mounted between said ears onsaid pin and is provided with a longitudinal strengthening-web 23, whichwhen the said arm is swung back is received into the recess 22 of thestandard, as illustrated in Figs. 2 and 4, and when said arm 10 is swungto the forwardly-extending position (illustrated in Figs. 1 and 5) itabuts against the shoulder 22 of the standard, and is held thereby inoperative horizontal position.

Journal-bearings 14 are formed in the free end of the fan-supporting arm10 and its depending bracket 15, and a fan -shaft 9 is mounted in saidbearings and is provided with nuts 17, having races 16 to receiveantifriction-balls 1b to facilitate the rotation of said shaft.Fan-blades 8 are secured to said shaft 9, and also secured to said shaftis a pulley 7. An endless band 5 passes around the said pulley 7, overthe idle rollers 6, and around the driving-pulley 4, whereby to revolvethe fan-blades when the supportingarm 10 is swung to theforwardly-extending position. (Illustrated in Figs. 1 and 5.)

In practice the automatic fan is secured in place by means of thehangers 19, with its fansupporting arm 10 swung to theforwardly-extending horizontal position. The fan can then be operated bywinding up the springmotor. WVhen it is desired to store the fan away,the said arm 10 is swung back, with its web 23 received in to the recess22 of the standard, and the fan is then in compact folded condition.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. An automatic fan, comprising power mechanism, including adriving-pulley; a casing for said mechanism; a standard ris ICO ing fromsaid casing and provided at its upper end with forwardly-extendingbrackets; spring-tensioned idle rollers journaled in said brackets;afan-su pporting arm pivotally connected at one end to the upper end ofsaid standard above said brackets and idle rollers; a fan-shaft mountedin the free end of said arm and provided with fan-blades and a pulley;and an endless band passing around said shaft-pulley, over saidtensioned idle rollers, and around said driving-pulley, as set forth.

2. An automatic fan, comprising power mechanism, including a drivingpulley; a casing for said mechanism; a standard rising from said casingand provided with a longitudinal rearwardly-opening recess, and alsoprovided at its upper end with forwardly-extending brackets and ashoulder, 22, and side ears, 22, above said brackets; afan-supporting'arm pivotally mounted at one end be- MOSES OTTENHEIMER.

'Witnesses:

CHARLES W. SrETsoN, WILLIAM B. REILLY.

